﻿//-----------------------------------------------------------------------
// <copyright file="TemplatesRepository.cs" company="OOHM PROCESSAMENTO DE DADOS LTDA.">
//     Microsoft Public License (MS-PL) This license governs use of the accompanying
//     software. If you use the software, you accept this license. If you do not
//     accept the license, do not use the software. 1. Definitions The terms "reproduce,"
//     "reproduction," "derivative works," and "distribution" have the same meaning
//     here as under U.S. copyright law. A "contribution" is the original software,
//     or any additions or changes to the software. A "contributor" is any person
//     that distributes its contribution under this license. "Licensed patents"
//     are a contributor's patent claims that read directly on its contribution.
//     2. Grant of Rights (A) Copyright Grant- Subject to the terms of this license,
//     including the license conditions and limitations in section 3, each contributor
//     grants you a non-exclusive, worldwide, royalty-free copyright license to
//     reproduce its contribution, prepare derivative works of its contribution,
//     and distribute its contribution or any derivative works that you create.
//     (B) Patent Grant- Subject to the terms of this license, including the license
//     conditions and limitations in section 3, each contributor grants you a non-exclusive,
//     worldwide, royalty-free license under its licensed patents to make, have
//     made, use, sell, offer for sale, import, and/or otherwise dispose of its
//     contribution in the software or derivative works of the contribution in
//     the software. 3. Conditions and Limitations (A) No Trademark License- This
//     license does not grant you rights to use any contributors' name, logo, or
//     trademarks. (B) If you bring a patent claim against any contributor over
//     patents that you claim are infringed by the software, your patent license
//     from such contributor to the software ends automatically. (C) If you distribute
//     any portion of the software, you must retain all copyright, patent, trademark,
//     and attribution notices that are present in the software. (D) If you distribute
//     any portion of the software in source code form, you may do so only under
//     this license by including a complete copy of this license with your distribution.
//     If you distribute any portion of the software in compiled or object code
//     form, you may only do so under a license that complies with this license.
//     (E) The software is licensed "as-is." You bear the risk of using it. The
//     contributors give no express warranties, guarantees or conditions. You may
//     have additional consumer rights under your local laws which this license
//     cannot change. To the extent permitted under your local laws, the contributors
//     exclude the implied warranties of merchantability, fitness for a particular
// </copyright>
//-----------------------------------------------------------------------
namespace AbstractSaaSTemplate.Infrastructure.Win2K8WithSQLServer.Repositories{    using System;
    using System.Linq;
    using AbstractSaaSTemplate.Domain.Models.Entities;
    using AbstractSaaSTemplate.Domain.Models.ValueObjects;
    using AbstractSaaSTemplate.Domain.Repositories;

    /// <summary>
    /// Implements 'ITemplatesRepository' and all its contract, providing
    /// data accessibility to the aggregate 'Templates'.
    /// </summary>
    public sealed class TemplatesRepository : SQLServerConnectedRepositoryBase, ITemplatesRepository
    {
        /// <summary>
        /// Initializes a new instance of the TemplatesRepository class.
        /// </summary>
        /// <param name="loaderForConnectionString">The delegate capable of retrieving the connection string for the LinQ2SQL context.</param>
        public TemplatesRepository(Func<string> loaderForConnectionString)
            : base(loaderForConnectionString)
        {
        }

        /// <summary>
        /// Creates or updates the template.
        /// </summary>
        /// <param name="entity">The template to be created or updated.</param>
        public void AddOrUpdateTemplate(Template entity)
        {
            if (entity == null)
            {
                throw new ArgumentNullException("entity");
            }
            
            using (var context = NewContext())
            {
                var template = context.Templates
                    .Where(d => d.Key == entity.Key)
                    .FirstOrDefault();

                if (template == null)
                {
                    template = new Core.Template();
                    template.Key = entity.Key;
                    context.Templates.AddObject(template);
                }

                CopyFromDomainToEF4<Template, Core.Template>(
                    entity,
                    template);

                template.CustomData = entity.CustomData.ToXml();
                context.SaveChanges();
            }
        }

        /// <summary>
        /// Creates or updates the template.
        /// </summary>
        /// <typeparam name="TCustomData">The type of the custom data.</typeparam>
        /// <param name="entity">The template to be created or updated.</param>
        public void AddOrUpdateTemplate<TCustomData>(Template<TCustomData> entity) where TCustomData : MessageCustomData
        {
            this.AddOrUpdateTemplate((Template) entity);
        }

        /// <summary>
        /// Retrieves a template by its key.
        /// </summary>
        /// <typeparam name="TCustomData">The type of custom data that will be used by this template.</typeparam>
        /// <param name="key">The template key.</param>
        /// <returns>Returns an instance of EmailTemplate</returns>
        [System.Diagnostics.CodeAnalysis.SuppressMessage(
            "Microsoft.Design",
            "CA1004:GenericMethodsShouldProvideTypeParameter",
            Justification = "Defined by design.")]
        public Template GetTemplateByKey<TCustomData>(string key) where TCustomData : MessageCustomData
        {
            using (var context = NewContext())
            {
                var template = context.Templates
                    .Where(d => d.Key == key)
                    .FirstOrDefault();

                if (template == null)
                {
                    return null;
                }

                var entity = new Template<TCustomData>();
                entity.Key = template.Key;

                CopyFromEF4ToDomain<Core.Template, Template>(template, entity);
                entity.CustomData = template.CustomData.FromXml<TCustomData>();
                return entity;
            }
        }

        /// <summary>
        /// Retrieves a tenant's template by its key.
        /// </summary>
        /// <typeparam name="TCustomData">The type of custom data that will be used by this template.</typeparam>
        /// <param name="tenantId">The id of the tenant.</param>
        /// <param name="key">The template key.</param>
        /// <returns>Returns an instance of EmailTemplate</returns>
        [System.Diagnostics.CodeAnalysis.SuppressMessage(
            "Microsoft.Design",
            "CA1004:GenericMethodsShouldProvideTypeParameter",
            Justification = "Defined by design.")]
        public Template GetTemplateByKey<TCustomData>(
            long tenantId,
            string key) where TCustomData : MessageCustomData
        {
            using (var context = NewContext())
            {
                var template = context.Templates
                    .Where(d =>
                        d.TenantId == tenantId &&
                        d.Key == key)
                    .FirstOrDefault();

                if (template == null)
                {
                    return null;
                }

                var entity = new Template<TCustomData>();
                entity.Key = template.Key;

                CopyFromEF4ToDomain<Core.Template, Template>(template, entity);
                entity.CustomData = template.CustomData.FromXml<TCustomData>();
                return entity;
            }
        }
    }
}


